Migrate SDP-META MCP server to MCP SDK 2.x; bump mcp to >=2.0.0

[ravi-databricks]

• Fix MCP 2.x server compatibility and packaging
• Document MCP 2.x setup and tool behavior

[codecov]

Codecov Report

❌ Patch coverage is 86.45418% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.72%. Comparing base (a157442) to head (6046b0f).

Files with missing lines	Patch %	Lines
src/databricks/labs/sdp_meta/mcp_server.py	87.22%	18 Missing and 11 partials ⚠️
src/databricks/labs/sdp_meta/bundle.py	78.26%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #402      +/-   ##
==========================================
+ Coverage   87.53%   87.72%   +0.18%     
==========================================
  Files          18       18              
  Lines        4229     4228       -1     
  Branches      825      824       -1     
==========================================
+ Hits         3702     3709       +7     
+ Misses        331      323       -8     
  Partials      196      196              

Flag	Coverage Δ
unittests	87.72% <86.45%> (+0.18%)	⬆️

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[brij-raghuwanshi-db]

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